package com.landiao.core.interceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import com.landiao.common.Constant;

public class LoginInterceptor implements HandlerInterceptor{

	@Override
	public void afterCompletion(HttpServletRequest arg0,
			HttpServletResponse arg1, Object arg2, Exception arg3)
			throws Exception {
		
	}

	@Override
	public void postHandle(HttpServletRequest arg0, HttpServletResponse arg1,
			Object arg2, ModelAndView arg3) throws Exception {
	}

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response,Object handler) throws Exception {
		boolean flag = true;
		HttpSession session = request.getSession();
		if(session.getAttribute(Constant.SESSION_USER)==null){
			flag = false;
			response.sendRedirect(request.getContextPath() + "/management/login");
		}
		return flag;
	}

}
